922621873 has 4 divisors (see below), whose sum is σ = 922685680. Its totient is φ = 922558068.

The previous prime is 922621859. The next prime is 922621877. The reversal of 922621873 is 378126229.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-922621873 is a prime.

It is a super-2 number, since 2×922621873² = 1702462241076056258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (922621877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318 + ... + 42976.

It is an arithmetic number, because the mean of its divisors is an integer number (230671420).

Almost surely, 2^922621873 is an apocalyptic number.

It is an amenable number.

922621873 is a deficient number, since it is larger than the sum of its proper divisors (63807).

922621873 is a wasteful number, since it uses less digits than its factorization.

922621873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63806.

The product of its digits is 72576, while the sum is 40.

The square root of 922621873 is about 30374.6913235345. The cubic root of 922621873 is about 973.5118645611.

The spelling of 922621873 in words is "nine hundred twenty-two million, six hundred twenty-one thousand, eight hundred seventy-three".